Global Organization

What are the grid code specifications for grid energy storage systems?

The Grid Code Specifications for Grid Energy Storage Systems are determined according to Table 3.1, and as a rule, they are not dependent on the rated capacities or specifications of other production or demand systems connected to the same connection point.

What data is required for a Type C grid energy storage system?

For type C grid energy storage systems, the data specified in tables 7.2 and 7.3 must be delivered. The grid energy storage system owner shall submit this grid energy storage system data to the relevant network operator as electronic documents after the commissioning testing.

What if a grid energy storage system requires specific measures?

If the specific studies indicate that the connection of the grid energy storage system requires specific measures in order to ensure the technical feasibility of the grid energy storage system, the measures are treated as equivalent to the Specifications, and the grid energy storage system owner is responsible for their execution.

When should a grid energy storage system owner request a study?

The grid energy storage system owner shall request from Fingrid the assessment of a need for a specific study during the preliminary planning stage of the grid energy storage system if the grid energy storage system belongs to type category D (table 3.1).

What if a grid energy storage system owner requests a derogation?

If the grid energy storage system owner requests a derogation when the grid energy storage system is to be connected to the network of a third party, Fingrid shall hear the relevant network operator when Fingrid makes the decision. Real-time measurements are not required for type A grid energy storage systems.

How is an energy storage system (ESS) classified?

An energy storage system (ESS) can be classified based on its methods and applications. Some energy storage methods may be suitable for specific applications, while others can be applied in a wider range of frames. The inclusion of energy storage methods and technologies in various sectors is expected to increase in the future.

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